Answer:
92
Step-by-step explanation:
Let the number be x.
As per the question,
3/4x - 18 = 1/2x + 5
(4)3/4x - (4)18 = (4)1/2x + (4)5
3x - 72 = 2x + 20
x = 92
The number is 92.
First number = X
Second number = 8X
Third number = X - 3
The equation would be
X + (8X) + (X - 3) = 207
X + (8X) + (X - 3) = 207
X + 8X + X - 3 = 207
10X - 3 = 207
10X = 207 + 3
10X = 210
X = 21
First number = 21
Second number = 8 * 21 = 168
Third number = 21 - 3 = 18
0.32 centavos, Dividí 3.89 por 12, y obtuve 0.32 centavos después de redondear la respuesta por décimas.
Answer:
Kobby is 1 and Nana is 6
Step-by-step explanation:
lets mark Kobby's present age x, than Nana's present age would be x+5.
four years later Kobby's age would be x+4, and Nana's x+5+4, or 2(x+4).
so
x+5+4=2x+8
x-2x=8-5-4
-x=-1
x=1
Distribute 4 with x and 2 to get the equation 3x+2=x+4x+8. Combine x and 4x to get 5x. Minus 3x from each side. Now you should have 2=2x+8. Subtract 8 from both side to get -6=2x. Divide and you get x=-3
